What should I do if I fall for my unemployed childhood friend living next door?

kiss 12

I mean... ha... how can I tell you that I dated you just to date you...
-past
Liu: Ya
Female Lead: Why
Liu: They say if you date someone else for more than 2 years and 3 months, you can date your next boyfriend.
Female Lead:?! Really?!
Liu: Yeah, you like Dongmin, you know.
Female Lead: Oh my^^ How did this pretty friend know that?^^
Liu: Tina.
Female Lead: ....Do you want to die?
Liu: ^^No?
Female Lead: ^^ Ah... I should give it a try.
-Ding-dong
-why
(The person on the phone right now is Choi Yeonjun, my friend of 13 years)
-Hey Choi
-blanket
- Oh no, I have a crush on someone^^
So, yeah.
Let's date
-? It's your crush, Dongmin.
Yeah, but they say if you date someone else for 2 years and 3 months, you can date your next boyfriend and get married.
Liu: No, when... I didn't say it was a marriage.
-ojj
-Yeah, okay. But instead, don't say it's me.
-blanket
-today
Female Lead: ...Cheating?
Taesan: ...Who.
Female Lead: Secret
Taesan: Huh...
Female Lead: Ah, but we're not making much progress.
Taesan://Too TMI...
Female Lead: Is that so...
Taesan:....ki...ki...ki..kiss is?
Female Lead: Haha, I didn't... Don't make me sad... ^^
Taesan: We can just do that with me, haha.
Female Lead: ....? What?